Vacuum-creating device for jars, &amp;c.



PATENTBD FEB. 12, 1907.

G. T. REED.

v VACUUM CREATING DEVICE FORJARS, &o.

APPLICATION FILED JUNE 30.1906.

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UITEE a STATS TE T FREQ.

GEORGE T. REED, OF BALTIMORE, MARYLAND, ASSIGNORTO CONTINENTAL JAR ANDBOTTLE STOPPER COMPANY, OF BALTIMORE, MARYLAND, A CORPORATION OF WESTVIRGINIA.

VACUUM-CREATING DEVICE FOR JARS, 800.

Specification of Letters Patent.

Patented Feb. 12, 1907.

Application filed June 30.1906. Serial No. 324,185.

To all whom, it may concern:

Be it known that I, GEORGE THORN REED, a citizen of the United States,residing at the city of Baltimore, in the State of Maryland, haveinvented certain new and useful Improvements in Vacuum-Creating Devicesfor Jam and other Vessels; and I do hereby deas the vacuum-receiverprocess, by a mechanical operation in which an air-pump is employed indirect communication wit the interior of the vessel through an orificein a sealing-cap closure by which the vessel is rendered air-tight whilethe vacuum is being created.

My invention provides a quick, cheap, and eflective means of exhaustingthe air from the vessel to preserve the contents from decomposition byan operation of the air-pump while the vessel is sealed by the cap andby a sealing provision of the air-pump itself with the cap-closure.

The accompanying drawings illustrate my invention, and, referring tothese drawings, Figure 1 shows in perspective an air-pump as it isapplied to a sealing-cap closure to extract the air from the sealedvessel. Fig. 2 is a longitudinal section of the air-pump as it isapplied to the sealing-can of a vessel in the operation of extractingthe air therefrom. Fig. 3 shows in perspective the air-pump having anelastic hood whereby it is applied to the sealing-cap closure in theoperation of extracting the air from the vessel. Fig. 4 shows invertical section, enlarged, the elastic hood and its pump connectionwith the sealing-cap closure in the position the pump occu'p ms forextracting the air from the sealed vessel.

I have shown my vacuum-creating pump as applied to the sealing-closureof a jar; but obviously it may be applied for use with jelly-glasses andwith bottles, and these I shall designate as vessels. I

To carry out my invention, which resides still applied by pressing downthe cap in the means for creating a vacuum in the filled vessel, 1 willfirst describe a sealingcap which is a necessity in using my vacuumpump.

Any suitable sealing-cap closure may be used, but I prefer a capcomposed of a sheet of metal and a layer or sheet of wood-pulp renderedsanitary with paraffin-wax, which is caused to penetrate the fiber,making it proof against moisture and acids, rendering it adhesive, andgiving it compactness of body, the two placed together, the metaluppermost, and pressed into cu or cap form, producing thereby a two 'plyc osure of metal land of fiber 2, both preferably of the same area andformin at the same operation a band 3 with the fiber pressed and forminga lining which by its adhesive function is caused tostick to every p artof the metal to unite the separate bodies and cause the fiber lining toact with a yieldin cushioning efl ect when the cap is placed on the neckof the vessel to be sealed. The cap thus produced is treated on itsinner or fiber side or wall with one or more coats of rure'paraffin-wax, which causes the cap to adhere to the walls of the vesselto seal it and to hold the cap in place.

"In order to apply the vacuum-creating device to the sealing-cap, it isprovided with an orifice 5 about one-eighth of an inch, which passesthrough the band and through the lining about mediate of the width ofthe band, and the cap having been adjusted on the filled vessel so thatits orifice will be just above the edge of the mouth of the vessel toopen communication of its interior with the outer air the pump is thenapplied to the orifice to extract the air from the vessel, creatin avacuum therein. The sealing of the ori ce is then eiiected while thepump is to carry its orifice below the edge of the vessel,

and thereby cutting off communication with the interior of the vesseland establish a vacuum therein. For this purpose I have designed a pump,having an elastic hood 6, adapted to inclose the sealing-cap and form asealing-joint therewith, so that communication with the. pump can onlybe had through a channel 7 in the pump in communication with the orificein the sealing-cap closure. For this purpose prefer to make the tube orbarrel 8 of the pump of hard rubber and the hood 6 of soft rubber, sothat when the hood is forced upon and over the sealing-cap closure thechannel of the pump Will re ister With the orifice in the cap, so thatwhen the 'iston 9, the normal osition of Which is at the'limit ofitsinward stroke, is drawn to the limit of its outward stroke the airWill be p-um Jed out of the vessel and its cap set to its closed andsealed position, pressure being app lied for this purpose to the top ofthe metal ca' o'through an opening- 10, formed by an inward rim 11 ofthehood, so that it overhangs the cap.

The importance of 'roviding the pump With the soft-rubber ood is that itcontracts and forms a tight-fitting seal around the outer Wall of themetal cap and around the orifice therein, so that no air can be drawninto the pump except that drawn from the filled and sealed vessel.

. The length of the pump-tube is suflicient to cause the stroke of thepiston to act eflectually in drawing all the air from the vessel andthat during the exhaustion of the airthe communication between thepump-chamber and the chamber of the vessel is cut off by pressing thecan sealing-Walls upon its seat to carry the orifice in its Wa ll belowthe edge of the vessel and thus seal it, When the pump hood is removed.

It is important to note that When the ori.-

fice in the rubber hood is in registering relation With the orifice inthe sealing-cap clo-- sure the hood Will seal the junction of the wallsaround the orifice and the pumpchannel, so there can be no leak at thepoint at Which the air is extracted from the vessel.

In this depression of the capthe hood is carried With it after theorifice in the cap is closed by the Wall of the vessel.

I claim-i 1. For creating a vacuum in vessels, the

' the sealing-cap and having an orifice adapted to effect communicationwith the pump and,

.With the orifice in the sealing-cap. I

2. The combination 'Wit1 a sealing-cap having a circumferential bandpierced With an orifice, of an air-p ump terminatingin an elastic hoodadapted to yieldin 'ly envelop the sealing-cap and having an orificeadapted to register with the orifice in said cap, said hood having a toprim overhanging the seal ing-cap to expose its top whereby communicationWith the pump-chamber and With the chamber of the/vessel is effected bythe registering orifices andcut off by de iressin the cap carrying Withit the pumphood whereby the air is extracted and the vessel sealedbefore removing the air-pump.

3. Means for extracting air from vessels consisting of a sealingrcap andan enveloping-hood for said cap, the hood and the cap having registeringorifices, and a pump having-a channel in communication with the orificein the hood.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

GEORGE T. REED. /Vitnesses: HARRY L. DRAKE, J. K. PAINTER.

